ul[comp=sidebar]{
  height: 100%;
  overflow-y: scroll;
  width: 130px;
    li{
      height: 50px;
      text-align: center;
      line-height: 50px;
      a{
        display: inline-block;
        text-decoration: none;
        color: #fff;
        width: 100%;
        height: 100%;
        text-overflow: ellipsis;
        white-space: nowrap;
        box-sizing: border-box;
        padding: 0 6px;
        overflow: hidden;
      }
      &.active{
        background-color: #e93939;
      }
    }
}